[PATCH] configure: remove dependencies on gmp and mpfr when gdb is disabled

[Richard Biener]

> Am 06.01.2023 um 09:44 schrieb Clément Chigot via Gcc-patches <gcc-patches@gcc.gnu.org>:
> 
> On Fri, Jan 6, 2023 at 9:39 AM Clément Chigot <chigot@adacore.com> wrote:
>> 
>> Since 91e0d22025e0bf2af2e364cb7214a05512a0c431, the configure checks
>> about GMP and MPFR for gdb builds have been moved to the toplevel
>> configure.
>> However, it doesn't take into account the --disable-gdb option. Meaning
>> that a build without gdb will require these libraries even if not
>> needed.
>> 
>> ChangeLog:
>> 
>>        * configure.ac: Skip GMP and MPFR when --disable-gdb is
>>        provided.
>>        * configure: Regenerate.
>> ---
>> configure    | 4 +++-
>> configure.ac | 4 +++-
>> 2 files changed, 6 insertions(+), 2 deletions(-)
>> 
>> diff --git a/configure b/configure
>> index d6716e38e99..85883099410 100755
>> --- a/configure
>> +++ b/configure
>> @@ -7913,7 +7913,9 @@ if test -d ${srcdir}/gcc ; then
>>   require_mpc=yes
>> fi
>> if test -d ${srcdir}/gdb ; then
>> -  require_gmp=yes
>> +  if test "x$enable_gdb" != xno; then
>> +   require_gmp=yes
>> +  fi
>> fi
>> 
>> gmplibs="-lmpfr -lgmp"
>> diff --git a/configure.ac b/configure.ac
>> index 737c1a1172b..2b612dce6e9 100644
>> --- a/configure.ac
>> +++ b/configure.ac
>> @@ -1489,7 +1489,9 @@ if test -d ${srcdir}/gcc ; then
>>   require_mpc=yes
>> fi
>> if test -d ${srcdir}/gdb ; then
>> -  require_gmp=yes
>> +  if test "x$enable_gdb" != xno; then
>> +   require_gmp=yes
>> +  fi
>> fi
>> 
>> gmplibs="-lmpfr -lgmp"
>> --
>> 2.25.1
> 
> This patch has already been merged in the binutils repository see [1].

Ok for GCC 

Richard 

> [1] https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=5fb0e308577143ceb313fde5538dc9ecb038f29f
> 
> Thanks,
> Clément